Alexandes lefobestiee



(N0 Model.)

A. LEPORESTIBR.

BELT FASTENING.

No. 392,873. Patented Nov. 13, 1888.

WITNESSES, IIVVE/VTOI? PETE S. Fholublnognphar, Washinglnn. B C

' VNITED STATES PATENT Fries.

ALEXANDBE LEFORESTIER, OF PHILADELPHIA, PENNSYLVANIA, ASSTGNOR OFONE-HALF TO B. F. BANES, OF SAME PLACE.

BELT-FASTENING.

SPECIFICATION forming part of Letters Patent No. 392,873, dated November13, 1888.

Application filed August 13, 1888. Serial No. 282,685.

To aZZ whom it may concern.-

Be it known that I, ALEXANDRE LEFOREST- IER, a citizen of the Republicof France, residing at Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented certain new and useful Improvementsin Belt-Fastenings; and I do hereby declare the following to be asufficiently full, clear, and exact description thereof to enable othersskilled in the art to make and use the said invention. 7

This invention relates to f astenings for uniting the ends ofmachine-belting so as to form endless bands for the transmission ofpower by frictional contact with pulleys, and has for its object thegreater convenience of application and removal, the avoidance of largeperforations and consequent weakening of the band incident to the use oflacings, better flexibility of the joint, and consequent closer contactof the band at the joint to the pulley-surface, and the avoidance ofrisk of accidental injury incident to the use of ordinary belt-hooks andbelt-studs. In addition to these desiderata, this invention is from itsform susceptible of cheaper production than other belt-fastenings, andcan be removed and again used without impairingits value. To effectthese results this invention may be briefly described as consisting of apeculiarly-shaped flat link and bent cross-bars, hereinafter fullydescribed and claimed and shown in the drawings annexed, in which Figure1 is a front view of one form of this invention as applied to the endsof machinebelt, the band being drawn in dotted lines. Fig. 2 is a sideview thereof with band shown in the same manner. Fig. 3 is a detachedview of the link. Fig. 4 is a detached view of one of the bars as seenfrom the front, and Fig. 4. as seen from beneath. Figs. 5 and 6 show adetached view of a modified form of link.

The same ordinals indicate like parts in the several figures.

1 represents a link having one straight side, 2, and the other side, 3,concave or receding (No model.)

below the level of two enlargements, 4, having eyes 5, through which fiteasily curved wire pins or bars 6, bent in the central part of theirlength like the upper line of the astronomical sign of Libra, r-\ Thebars are flattened on the straight parts and at the ends round, so as toavoid abrasion of the belt and to facilitate their introduction with theeyes 5. 5 5

As shown in Figs. 1, 2, and 3, the links are made of fiat plates ofmetal, preferably by a piercing-press, and, as shown in Fig. 5, of wirebent to form the eyes 5. The link shown in Fig. 6 has an eye, 5, on oneend only, and

T on the other end a T-head, with a neck, 8,

bent upwardly.

To use this invention, small flat perforations are made lengthwise inthe belt and the eyes of the links passed through from the under 6 side.The pins 6 are then inserted, and when the band is strained on thepulleys for use the bars act as pivots in facilitating flexure. Inpassing the pulleys the ends of the bars indent the leather and acquirea firmhold therein, being so far embedded as not to be liable to catchor hook on objects coming in contact with the bars. The link, from itsflat form, requires but a narrow aperture for its insei tion, andtherefore impairs the strength of the belt slightly,while the bars 6,spreading upon practically the entire width of the band, collect andtransmit its whole strength to the links 1.

In the form shown in Fig. 6 the end of the link marked 4 is passed intothe aperture in one end of the band from the outer side, and thenoutward from the inner side of the other end of the band, and a bar, 6,is introduced in the eye Upon strain being applied to the 8 5 band theT-head 7 seats and beds itself in the band at one end of the band andthe bar 6 into the other.

I am aware that driving-bands have had their ends united by links passedthrough 0 them and secured by straight rods passing through the eyes ofseveral links and resting upon the outer surface of the band. These areobjectionable on account of forming a projecting lump on the band andimpairing the said eyes and arranged to permit the eyes to [Oflexibility at that point, and are hereby disembed in the thickness ofthe band, While the claimed; but, straight ends rest on the surfacethereof, sub- Having described my invention and operastantially asdescribed and shown. 5 tion thereof, what I claim is- Theherein-described belt-fastener, consisting of a link, 1, with a recessupon one side between two eyes formed in the ends, combined withcentrally-bent cross-bars fitting in 1 ALEXANDRE LEFORESTIER.

WVitnesses:

ALEX. H. SIEGEL, J. DANIEL EBY.

